Nuclear Ready

1. What is fallout?

Acid rain

Radioactive particles that fall from the sky after a nuclear explosion

A type of weather

2. When does fallout begin to arrive after a ground-level detonation?

Immediately

Usually within 15-60 minutes

After 24 hours

3. What does fallout look like?

It's invisible

It can look like fine sand, ash, or dust

It glows in the dark

4. The '7/10 Rule' of fallout decay means that for every 7-fold increase in time...

...the radiation dose rate increases by 10%

...the radiation dose rate decreases by 90%

...you should drink 10 glasses of water

5. Where is the fallout concentration likely to be highest?

Indoors

On roofs and flat surfaces where it can settle

Underground